The STM32L072CBT6 from STMicroelectronics is an ultra-low-power 32-bit microcontroller from the STM32L0 family. Based on the Arm Cortex-M0+ core and operating at up to 32MHz, it combines efficient processing performance with advanced low-power capabilities for battery-powered and energy-sensitive embedded applications.
The device integrates 128KB of Flash memory, 20KB of SRAM, and 6KB of data EEPROM, providing storage for application code, runtime data, and nonvolatile configuration parameters. Multiple low-power operating modes help minimize energy consumption, making the STM32L072CBT6 suitable for long-life battery-powered designs.
Its analog subsystem includes a 12-bit ADC operating at up to 1.14Msps, two 12-bit DAC channels, and two ultra-low-power comparators. The MCU also supports up to 24 capacitive sensing channels for touch keys, sliders, and rotary interfaces.
STM32L072CBT6 provides extensive connectivity including crystal-less USB 2.0 Full-Speed, multiple USART/UART interfaces, SPI, and I2C. An internally calibrated 48MHz RC oscillator supports USB operation without requiring an external crystal, helping reduce component count and PCB space.
The STM32L072CBT6 is supplied in a 48-pin LQFP package measuring 7 × 7 × 1.4mm and operates over an industrial temperature range of -40°C to +85°C. Typical applications include smart meters, portable instruments, industrial sensors, medical electronics, home automation, data acquisition, and low-power IoT devices.
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